摘要
采用二元二次饱和D-最优试验设计方案(206),通过抗旱棚进行盆栽试验,在固定P、K肥料用量的前提下,对另外N肥和水的耦合效应进行了研究。结果表明,N和水配合存在阈值反应,通过对所建数学模型的计算机模拟,提出了不同决策目标下的水肥优化方案。
Duality quadratic saturating D-optimum design was carried out under pot experiment to study the interaction of N fertilizer and water coupling at a given level of P and K. The results showed that the threshold value existed in water-fertilizer interaction. The optimal scheme of water-fertilizer interaction under objectives was worked out by computer simulation on a mathematical model which was established based on the result of experiment.
出处
《黑龙江农业科学》
2009年第4期61-63,共3页
Heilongjiang Agricultural Sciences
基金
黑龙江省科技攻关项目(GA07B101A10)
关键词
春玉米
水肥耦合
优化
spring maize
water and fertilizer coupling
optimum
